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(No Model.) 2 Sheets-,-Sheet 1. W. WEBSTER. A

STEAM JACKET ATTAGHMENT FOR FEED WATER HEATERS.

No. 537,325. I Patented Apr. 9,- 1895.

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W. WEBSTER. STEAM JACKET ATTACHMENT FOR FEED WATER HEATERS. N0. 537,325.

Patented Apr. 9, 1895.

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WARREN WEBSTER, OF MEROI-IANTVILLE, NEW JERSEY.

STEAM-JACKET ATTACHMENT FOR FEED-WATER HEATERS.

SPECIFICATION forming part of Letters Patent No. 537,325, dated April 9,1895. Application filed January 4,1895. Serial no. 533,818. (No model.)

Improvement in Steam-Jacket Attachments for Feed-Water Heaters, whichimprovement is fully set forth in the following'specification andaccompanying drawings.

My invention consists of a novel construction of steam jacket attachmentfor feed water heaters,which is capable of general adaptation, but'isespecially applicable to that class of feed water heating devices termedopen.

heaters, in which a body of water iscaused to fall upon a series oftrays inclosed in a suitable casing, said water being heated to therequisite temperature by a current of steam which is injected thereinto,a portion of said water afterward accumulating in the bottom of theheater; the office of said steam jacket attachment, which may surroundboth the sides and bottom, or only the bottom of said heater, interiorlyor exteriorly being not only to prevent the loss of heat throughradiation from the lower portion of the apparatus, but also to furnish asource of heat to enable the feed water to be maintained at a hightemperature,prior to its removal to the boiler, or elsewhere.

It further consists of novel details of con struction, all as will behereinafter set forth.

Figure 1 represents a vertical sectional view of a steam jacketattachment for feed water heaters embodying my invention. Fig. 2represents a side elevation of the same. represents a modified form ofsaid attach- L I 1611b. Fig. 4 represents a further modificaion.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings: A designates the casing of a feed. waterheater, having the water inlet B, the steam inlet 0, the water outlet D,and the combined vent and air inlet pipe E, and the inclined trays F,reference being had to Figs. 1 and 2, allof which above parts may beconstructed in accordance with a prior patent granted to me October 9,1888,

Fig. 3

The jacket attachment for the lower portion of the heater may be formedin a variety of ways, and may be applied to the sides and bottom of theheater, or to the bottom alone,

,interiorly or exteriorly. In Fig. 1, the attachment is shown as appliedto the bottom, G designating the bottom wall of the heater proper, whichlatter has its sides H extended below said wall or head G. J designatesa suitable head or closure, which is secured to said sides in anysuitable manner. The space K between the heads G and J forms anindependent heating chamber, and has a communication by means of thepipe L, with a suitable portion of the steam inlet pipe 0. M designatesa drip pipe for said jacket K, which is to be preferably smaller thanthe pipeL, and discharges into the drain pipe N, at a suitable pointbelow the valve P in the latter, said drain pipe passing through thesteam jacket into the interior of the heater, but having nocommunication with said jacket, as is'e'v'ident.

When the heater is in operation, a portion of the incoming steam will beconducted from the inlet 0 by the pipe L, into the jacket K, and it willthus be seen that the storage feed water in the lower portion of theheater, which rests on the head or Wall G, is subjected to the sametemperature above and below, and that all loss of heat by radiation orcooling of saidbottom wall of the apparatus is consequently prevented,since the metal is heated to the same temperature as the steam, and theefficiency of the heater is thereby increased to a high degree.

If desired, I'may interpose a suitable separator Q, between the steaminlet 0, and the casing A of the heater, the function of said separatorbeing to extract the oil and other extraneous matter from the incomingsteam before it enters the heater, the connection from the jacket K tothe said separator being made through the drip chamber R, located at thelower portion of said separator.

In Fig. 3, Ihave shown a slightly modified construction of the jacketattachment, the exterior of the heater casing being unaltered, while inthe lower portion thereof is placed the pan shaped receptacle S, thesame having the upright sides T,which terminate below the steam inlet W,extending entirely around the heater and having the flanges U, by meansof which said pan is secured to the interior of the lower portion of thesame.

Xdesignates the water outlet pipe, which communicates with the storagewater E in the lower portion of theheater, said pipe having nocommunication with the steam jacket Z, the latter thus forming anindependent heating chamber.

Y designates the pipe which conducts steam to the space Z, between thepan S and the bottom A of the heater, and Bdesignates the drip pipewhich leads from said jacketZ to the drain pipe Cat a point below thevalve D in said pipe, the latter having no communication with saidjacket Z but passing through the same into the space above the pan S.

The operation is as has already been described, the steam passing intothe jacket through the pipe Y, and any water of condensation beingremoved by the pipe B.

In the modified construction seen in Fig. 4, the lower portion of theheater remains unchanged, and the general construction of the pan S isthe same, except that a lip S of the latter is extended up into thesteam pipe W, into the path of the incoming steam, so as to deflect aportion of the same into the space Z. In the latter construction, thesteam pipe Y for the jacket Z is dispensed with, the drip pipe B and thedrain pipe C however, as well as the other parts of the apparatus seenin Fig. 3, remaining unchanged.

Suitable cut-oft valves E may be inserted in the pipes L and Y, forregulating the flow of steam to the jacket space, and check valves F areto be inserted in the drip pipes M and B, said check valves seating inthe directions indicated.

I have also shown in Figs. 1 and 2 a scum pipe II, and an overflow pipeG, the upper extremity of each of which communicates with the interiorof the heater, at or about the water level, while their lower portionsdischarge into the drain pipe N, said overflow G being provided with avalve J, having the weighted handle K.

It will be obvious that a separator Q may be employed in theconstructions seen in Figs. 3 and 4, if desired, as in Fig. 1, and thatthe steam which may be live or exhaust steam may be conducted to thesteam jacket either before or after it enters said separator, and thatfurthermore, said jacket may be arranged I either interiorly orexteriorly of the heater, 1 and other changes may be made by thoseskilled in the art, which will come within the scope of myinvention, andI do not therefore desire to be limited to the exact constructions Ihave herein shown and described.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a feed water heater, a casing, a steam inlet pipe therefor, ajacket, forming an inde pendent chamber, surrounding the lower portionof said casing, and a separate steam pipe leading into the space betweensaid jacket and the bottom of said casing, said parts being combinedsubstantially as described.

2; In a feed water heater, water and steam inlet pipes, and a dischargewater pipe therefor, a jacket forming an independent heating chambersurrounding the lower portion of said casing, a steam supply for saidjacket, a drip pipe for the latter, and a drain pipe for the casing.said parts being combined substantially as described.

3. In a feed water heater, a casing, water and steam inlet pipes, and adischarge water pipe therefor, a jacket forming an independent heatingchamber, for the lower portion of said casing, a steam supply for saidjacket, a drip pipe for the latter, and a drain pipe for said casing,said drain pipe passing through said jacket, substantially as described.

4. In a feed water hcater,in which the feed water comes into directcontact with the steam, a steam inlet pipe, a separator interposedbetween said inlet and the heater, a steam jacket in the lower portionof said heater, a pipe conveying steam to said jacket from the dripchamber of said separator, and suitable drip and drain pipes,substantially as described.

5. In a feed water heater, in which the feed water comes into directcontact with the steam, a steam inlet pipe, a separator for the latter,a steam jacket in the lower portion of theheater, a pipe for conveyingsteam to said jacket, a drip for the latter, a drain pipe havingcommunication with the interior of the heater, and scum and overflowpipes, substantially as described.

6. In a feed water heater, in which the feed water comes into directcontact with the steam, a pan shaped vesselsuitably attached to thelower portion of the same, so as to form a steam jacket, said vesselhaving a lip projecting toward the steam inlet pipe, whereby steam isconveyed into said jacket, substantially as described.

\VARREN WEBWIER.

Witnesses:

JOHN A. WIEDERSHEIM, R. H. GRAEsER.

